PLUNGER

摘要

PROBLEM TO BE SOLVED: To provide a plunger to prevent a liquid drop from an end of a syringe. SOLUTION: The plunger has a gasket 1 and a plunger rod 2 installed at an end off the gasket 1. A connecting hole 12 is opened at the end of the gasket 1. A tip part 21 of the plunger rod 2 that is formed as a shape corresponding to the connecting part 12 is inserted and fixed. There is a space 3 between a base tip part 221 of the inserted plunger rod and a base end 13 of a gasket 2. A tip 11 of the gasket 1 is formed as a flat at least a part between the tip 11 and the connecting hole 12 is pressed to form a flexible and thick shape.